[jira] [Created] (SOLR-12388) Enable a strict ZooKeeper-connected search request mode, in which search requests will fail when the coordinating node can't communicate with ZooKeeper

["Steve Rowe (JIRA)" <ji...@apache.org>]

Steve Rowe created SOLR-12388:
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             Summary: Enable a strict ZooKeeper-connected search request mode, in which search requests will fail when the coordinating node can't communicate with ZooKeeper
                 Key: SOLR-12388
                 URL: https://issues.apache.org/jira/browse/SOLR-12388
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Steve Rowe
            Assignee: Steve Rowe


Right now, a Solr node will return the results of a search request even if it cannot communicate with ZooKeeper at the time it receives the request. This may result in stale or incorrect results if there have been major changes to the collection structure that the node has not been informed of via ZooKeeper.  When this happens, as long as all known shards respond, the response will succeed, and a {{zkConnected}} header set to {{false}} is included in the search response.

There should be an option to instead fail requests under these conditions, to prevent stale or incorrect results.



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